package com.itheima.mapper;

import com.itheima.entity.Dept;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface DeptMapper {
  /*  //数据封装方式一：手动结果映射
    @Results({
            @Result(column = "create_time",property ="createTime"),
            @Result(column = "update_time",property = "updateTime")
    })*/
   /* //数据封装方式二：起别名
    @Select("select id, name, create_time createTime, update_time updateTime from dept;")
    */
    // 数据封装方式三：全局配置，开启驼峰命名规则映射
    @Select("select * from dept;")
    public List<Dept> list();
    //根据id删除部门
   @Delete("delete from dept where id=#{id}")
    void delete(Integer id);
   //新增部门
    @Insert("insert into dept(name,create_time,update_time) values (#{name},#{createTime},#{updateTime})")
    void insert(Dept dept);
    //根据id查询部门数据
    @Select("select *from dept where id=#{id}")
    Dept selectById(Integer id);
    //根据id更新部门
    //@Update("update dept set name=#{name},update_time=#{updateTime} where id=#{id}")
    void update(Dept dept);
}
